Determination of laser beam parameters with the phase space beam analyser

1992 ◽  
Vol 24 (9) ◽  
pp. S927-S949 ◽  
Author(s):  
N. Hodgson ◽  
T. Haase ◽  
R. Kostka ◽  
H. Weber
Keyword(s):  
Phase Space ◽  
Laser Beam ◽  
Beam Parameters

Determination of gradient index based on laser beam deflection by stochastic particle swarm optimization

2021 ◽  
Vol 127 (9) ◽  
Author(s):  
Linyang Wei ◽  
Guojun Li ◽  
Miaomiao Song ◽  
Cun-Hai Wang ◽  
Weijun Zhang
Keyword(s):  
Particle Swarm Optimization ◽  
Laser Beam ◽  
Particle Swarm ◽  
Beam Deflection ◽  
Gradient Index ◽  
Swarm Optimization ◽  
Stochastic Particle

scholarly journals Effect of laser beam parameters on magnetic properties of Nd–Fe–B thick-film magnets fabricated by pulsed laser deposition

2011 ◽  
Vol 109 (7) ◽  
pp. 07A758 ◽  
Author(s):  
H. Fukunaga ◽  
T. Kamikawatoko ◽  
M. Nakano ◽  
T. Yanai ◽  
F. Yamashita
Keyword(s):  
Magnetic Properties ◽  
Laser Beam ◽  
Pulsed Laser Deposition ◽  
Thick Film ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Beam Parameters

A-Si:H Ambipolar Diffusion Length and Effective Lifetime Measured by Flying Spot Technique (FST)

1991 ◽  
Vol 219 ◽  
Author(s):  
M. Vieira ◽  
R. Martins ◽  
E. Fortunato ◽  
F. Soares ◽  
L. Guimaraes
Keyword(s):  
Laser Beam ◽  
Transient Analysis ◽  
Diffusion Length ◽  
Transport Equations ◽  
Ambipolar Diffusion ◽  
Schottky Barriers ◽  
Effective Lifetime ◽  
Asymmetrical Distribution ◽  
Flying Spot

ABSTRACTThe determination of the ambipolar diffusion length, L*, and the effective lifetime, τ*, in p/i and a-Si:H Schottky barriers (ITO/p/a-Si:H/Al-Si; Cr/a-Si:H/Cr/Ag) have been determined by Flying Spot Technique, FST. This technique consists in the transient analysis of the photocurrent/photopotential induced by a laser beam that moves perpendicularly to the structure with a constant motion ratio, at different velocities. Taking into account the competition between the diffusion/drift velocities of the excess carriers and the velocity of the flying spot, it is possible to solve the transport equations and to compute separately L* and τ*, from the asymmetrical distribution responses.

Application of the GPIB interface for the automation of measurements of laser-beam parameters and laser devices

1995 ◽  
Author(s):  
Antoni Sarzynski ◽  
Roman Ostrowski ◽  
Jan Marczak ◽  
Marek Skorczakowski
Keyword(s):  
Laser Beam ◽  
Automation Of Measurements ◽  
Gpib Interface ◽  
Beam Parameters ◽  
Laser Devices
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